CVE-2026-18022

Integer wraparound in IVFFlat index build in pgvector before 0.8.6 allows a database user to write data out-of-bounds, which could lead to arbitrary code execution. Only 32-bit systems are affected.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/pgvector/pgvector/commit/636a92a3395d2e036ffd40d07aeb400a708ae104	Patch
https://github.com/pgvector/pgvector/issues/1006	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:pgvector_project:pgvector:*:*:*:*:*:postgresql:*:*

History

No history.

Information

Published : 2026-07-29 20:17

Updated : 2026-08-20 13:15

NVD link : CVE-2026-18022

Mitre link : CVE-2026-18022

CVE.ORG link : CVE-2026-18022

JSON object : View

Products Affected

pgvector_project

pgvector

CWE

CWE-190

Integer Overflow or Wraparound

CWE-787

Out-of-bounds Write

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